EXTRAV'AGANCY, adjective [Latin extra and vagans; vagor, to wander. See Vague.]
1. Literally, a wandering beyond a limit; an excursion or sally from the usual way, course or limit.
2. In writing or discourse, a going beyond the limits of strict truth, or probability; as extravagance of expression or description.
3. Excess of affection, passion or appetite; as extravagance of love, anger, hatred or hunger.
4. Excess in expenditures of property; the expending of money without necessity, or beyond what is reasonable or proper; dissipation.
The income of three dukes was not enough to supply her extravagance
5. In general, any excess or wandering from prescribed limits; irregularity; wildness; as the extravagance of imagination; extravagance of claims or demands.